US2025135745A1PendingUtilityA1

Antistatic fabric article

Assignee: 3M INNOVATIVE PROPERTIES COMPANYPriority: Aug 13, 2021Filed: Aug 5, 2022Published: May 1, 2025
Est. expiryAug 13, 2041(~15 yrs left)· nominal 20-yr term from priority
B32B 27/12B32B 43/006B32B 27/286B32B 27/308B32B 27/08B32B 2307/21B32B 2405/00B32B 2307/202B32B 2305/20B32B 17/067B32B 21/10B32B 9/047B32B 13/14B32B 15/14B32B 5/026B32B 5/024B32B 2471/00B32B 2571/00B32B 2262/0284B32B 2255/26B32B 2255/10B32B 5/022B32B 27/32Y10T428/2848Y10T428/2843
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Claims

Abstract

Aspects of the present disclosure relate to antistatic articles, including systems, and methods of use thereof. The article can include a fabric layer having a first fabric side and a second fabric side, and a polymeric antistatic layer disposed in a direction towards the second fabric side. The polymeric antistatic layer comprises an antistatic polymer.

Claims

exact text as granted — not AI-modified
1 . An article comprising:
 a fabric layer having a first fabric side and a second fabric side; and   a polymeric antistatic layer disposed in a direction towards the second fabric side, wherein the polymeric antistatic layer comprises an antistatic polymer.   
     
     
         2 . The article of  claim 1 , wherein the fabric layer comprises a nonwoven fabric, woven fabric, knitted fabric, or combinations thereof. 
     
     
         3 . The article of  claim 1 , wherein the antistatic polymer is a primer for an adhesive layer. 
     
     
         4 . The article of  claim 1 , further comprising:
 a polymer film layer having a first film side and a second film side;   wherein the polymer film layer is sandwiched between the fabric layer and the polymeric antistatic layer.   
     
     
         5 . The article of  claim 4 , wherein the first film side is disposed on the second fabric side, and the polymeric antistatic layer is disposed on the second film side. 
     
     
         6 . The article of  claim 5 , wherein the polymeric antistatic layer has a first antistatic side and a second antistatic side, wherein the first antistatic side contacts the second film side. 
     
     
         7 . The article of  claim 1 , further comprising an adhesive layer having a first adhesive side and a second adhesive side, wherein the first adhesive side is disposed on the polymeric antistatic layer. 
     
     
         8 . The article of  claim 7 , wherein the first adhesive side is disposed on the second antistatic side. 
     
     
         9 . The article of  claim 8 , wherein a charge decay of the article is less than 0.02 seconds between 16% and 30% (inclusive) relative humidity. 
     
     
         10 . The article of  claim 1 , wherein the polymeric antistatic layer comprises an acrylate copolymer, comprising a crosslinking agent in an amount of at least 2 weight percent of the total weight of the polymeric antistatic layer. 
     
     
         11 . The article of  claim 10 , wherein the crosslinking agent comprises diacetone acrylamide. 
     
     
         12 . The article of  claim 10 , wherein the crosslinking agent is a difunctional crosslinking agent, the difunctional crosslinking agent is adipic dihydrazide or adipic acid dihydrazide. 
     
     
         13 . The article of  claim 1 , wherein the article does not include metal or metal salts thereof or non-polymeric quaternary ammonium salts such as ammonium chloride. 
     
     
         14 . The article of  claim 1 , wherein only the polymeric antistatic layer has antistatic properties. 
     
     
         15 . The article of  claim 14 , wherein the fabric layer or adhesive layer is not treated with antistatic materials. 
     
     
         16 . The article of  claim 1 , wherein the polymeric antistatic layer comprises a primer layer and a conductive polymer layer. 
     
     
         17 . The article of  claim 16 , wherein the conductive polymer layer comprises PEDOT-PSS. 
     
     
         18 .- 19 . (canceled) 
     
     
         20 . A method comprising:
 applying the article of  claim 1  to a substrate at room temperature;   allowing the article to protect the substrate from liquids to form a soiled article;   removing the soiled article from the substrate by peeling the soiled article at room temperature.   
     
     
         21 . The method of  claim 20 , wherein a static charge produced at an interface between the soiled article and the substrate is dissipated through the polymeric antistatic layer. 
     
     
         22 . The method of  claim 21 , wherein the adhesive layer stays attached to a polymer film layer when the soiled article is removed. 
     
     
         23 . (canceled)

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